Sewing-machine gage.



N. FRIEDMAN.

SEWING MACHINE GAGE.

APPLICATION FILED JUNE 7,1909.

942,9@r la'te-miseal $3 68. 7, 1909 ,ticle which can miss earns ra rnn ranion.

NATHAN FRIEDMAN, OF CHICAGO, ILLINOIS.

SEWING-MACHINE GAGE.

Specification of Letters Patent.

Patented Dec. '7, ions.

Application filed June 7, 1909. Serial No. 500,629.

I '0 all whom it may concern:

lie it known that I, NA'II-IAN FRIEDMAN, a citizen of the United States,residing at Chi cago, Cook county, Illinois, have invented certain newand useful lmprovemci'its in Sewing-h'lachinc Gages, of which thefollowing is a specification.

The present invention relates to attachments for sewing machines whichprovide for regulating the line of stitches in its relation to the edgeof the goods so as to secure uniformity in this respect. 7

The-object is to provide a simple and cili- Kient form of gage which canbe readily applied to different makes of sewing machines without callingfor any mechanical skill in fixing the attachment in place; and furtherto provide for easily accomplishing the necessary adjustment and formaking that adjustment as line as will he required.

The invention aims also to produce an arbc inexpensively manufactured,but which at the same time will be durable and reliable.

ith these objects in view the invention consists in certain novelfeatures of construction and combinations of parts the essentialelements of which are recited in the appended claims and a preferredform of embodiment of which is shown in the accon'ipanying drawings andspecifically dc scribed hereinafter.

Of said drawings. Figure perspective the presser-foot and bar and a pttion of the framework and table ol a sewing machine of the Singer typehaving my gage attachment fastened in placcj Fig. 2 shows the gage inplan view with its sup porting bracket in horizontal cross section,together with av similar illustration of ,lhe presserfoot and bar; Fig.3 isa vertical section of the gage taken on the line 3-"l of Fig. 2; andFig. 4 shows the supporting bracket of the gage in perspective.

The reference letter A designates the work plate of a sewing machinetable, B the presser-toot, b the shank thereof and G the presser-footbar to which the shank I) is connected by a screw 0.

The reference letter D designates in general a supporting bracketforming a part of the attachment, this bracket comprising a port-ion (Zin the form of a plate with a rounded edge, and a portion of of similarcharacter extending at right angles to the portion d. Said portion d hasan open 1. represents in slot d in its forward rounded edge, which i l ll i turned back slightly l l l l slot is adapted to embrace the shank ofthe screw behind the head thereof, as illustrated in Figs. 1 and 2. Itwill thus be seen that by slightly turning back the screw 0 the bracketcan be engaged therewith and then by tightening the screw the bracketcan be securely fastened to the shank of the presserfoot. The otherportion (Z of the bracket is formed with a key-hole slot (Z so as toadapt the attachment to a different make of sewing machine, such as theWheeler & Wilson, which has the fastening screw or the prcsscr-ioot atthe rear. The key-hole form of slot is employed so that when ap plyingthe bracket to this type of sewing machine it will not be necessary towithdraw the screw entirely but. as in the case oiT-thc screw alreadyreferred to, it can be and the large end of the slot slipppd over thehead of the screw and the bracket then-moved laterally so as to carrythe small portion of the .slot around the shank of the screw. 'l helatter then being tightened will hold the bracket securely to thepresser-l'oot.

Froinlhc under edge of said bracket their projects anv integral flange11* (Fig. and ears Z are bent up from the rear edge of this flange andover the top of the latter with spaces bclwcen so as to form a guide-waythrough which an elongated bar i can freely slide. At one end this baris bent downwardly at right angles to form a short vertical portion 0and thence extends toiwvardly as at w and is then bent laterally as atc" and tin-ally iiormed with a forwardly extending portion a which liesclose to the work plate A parallel with the side edge of thepresscr-ioot B. This portion a engages the edge of the goods to keep theline of stitches at the proper distance from such edge.

The bar E is formed along its rear edge with a series of rack teeth 6slightly tapered and engaged by a worm-gear F which has trunnions fjournaled in hearings on the bracket D formed by portions of the middlethereof extending rearwardly beyond the ears (Z and rolled back intocircular form as clearly shown in Fig.

the portion (Z of 3, such bearings bein designated by the referenceletter f. It will be'obvious that by applying finger or thumb to theworm-gear and turning the latter the bar 15 can be moved back and forthin the slide-way provided by the flange 61* and the ears It Will furtherbe apparent that through this means a fine adjustment of the gage can behad. In order to enable the operator to properly measure the adjustmentthe bar E is marked on top, adjacent the forward edge, with a scale arunning to eighths of an inch and adapted to register with the outeredge of the left-hand ear (Z In order to facilitate the application ofthe bar to the bracket, avoiding the necessity of any bending back ofportions of the latter or the use of any fastening devices, the bar E isreduced in Width at one end as shown at 6, this reduced portion runningup to the-first of the rack teeth 6 It will be seen that with thisconstruction the bar can be inserted in the bracket slide-Way, thereduced portion 6 moving past the worm-gear F until the first teeth 6strike the convolution of the wormgear. By then turning the latter thebar can be worked through the slide-Way to the desired adjustment.

It will be seen that the above construction provides an extremely simpleand efiicient form of gage which can be readily applied to differentmakes of sewin machines and which is capable of any desired adjustmentby very simple and easy manipulation. It will also be noted that theform and construction of the parts is such as to provide for manufactureof the article in quantities inexpensively.-

An advantage of the particular form of adjusting meansa Worm gearengaging a dentally slipped by force applied directly to it. I 7

Having thus (jlQ-SCl'lbQtl my invention, What I claim is:

1. A sewing machine bracket having portions extending at right angles toeach other and each portion slotted for engagement with the fasteningscrew'of' the sewing machine presser foot shank, one

such portion of the bracket or the other being 4 fitted against thepresser foot shank and said bracket having a slide-Way to extendalongside said presser foot shank; and a gage bar in said slide-way. v Y

2. A. sewing machine gage comprising a 5 bracket having portionsextending at right angles to each other and each portion slotted forengagement with the fastening screw of the sewing machine presser footshank, one such portion of the bracket or the other being 55 fittedagainst the presser foot shank and said bracket having a slide-way toextend alongside'said presser foot shank; a gage bar in said slide \vayhaving rack teeth, and a worm gear on the bracket engaging said 0 teeth.

NATHAN FRIEDMAN.

. Witnesses:

Lo UIsB. ERWIN. v FnAnK PARKER DAVIS.

gage comprising a

